Machine



(No Model.) 2 Sheets-Sheet 1. V. E. EDWARDS. WVIRE DRAWING MACHINE. No.543,858.l Patented Aug. 6,1895.

2 Sheets-Sheet 2.`

(No Model.)

V. E. EDWARDS. l WIRE DRAWING MACHINE. No. 543,858. Patented Aug.6,1895.

Swanton WAX/Cof@ 52h/m34) .UNITED -STATES PATENTA OFFICE.

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VICTOR E. EDWARDS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE MORGANCONSTRUCTION COMPANY, OF SAME PLACE.

WIRE-DRAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 543,858, dated August6, 1895. Application filed Tilly 8, 15,93. I Serial No. 479,968. (Nomodel.)

To all whom/ it may concern.-

Beit known that I, Vieron E. EDWARDS, a citizen of the United States,residing at Worcester, in the county of Worcester and State ofMassachusetts, have invented a new and useful Improvement inTire-DrawingV Machines, of which the following is a specification,reference being had to the accompanying drawings, forming a part ofthe'same, and representing a wiredrawing machine embodying my invention,in whichy Figure l represents a perspective View of the machine. Fig.r2is a plan view of the same. Fig. 3 is a vertical sectional view on line3 3, Fig. 2. Fig. 4 isa central sectional View of the drawing-blockcarried upon the end ofone of the conical drawing-drums, the sectionbeing taken on line 4 4, Fig. 5. Fig. 5 represents an end view of thedrawing-block in section shown in Fig. 4, the hand-Wheel having beenremoved on line 5 5, Fig. 4; and Fig. 6 is a sectional view of thegripping-jaws on line 6 6, Fig. 5.

Similar letters and numerals refer to similar parts in the differentfigures.

My invention relates to certain improvements in that class ofwire-drawing machines in which the Wire is drawn through severalsuccessive dies in a continuous operation; and it consists in theseveral features hereinafter described and `specically pointed out inthe annexed claims.

Referring to the accompanying drawings, A denotes the supporting standor framework, in which is journaled a horizontal drivingshaft A',provided with tight and loose pulleys A2 A3, and a pinion A4, engaginggears A5 A5 upon the shafts B and B', journaled in the framework of themachine and carrying conical wire-drawing drums B2 and B3, provided withcircumferential V-shaped grooves B4. The shaft B carries the bevel gearB5, which engages a bevel-gear upon the vertical shaft C, journaled inthe framework of the machine and provided with a spur-gear C', engagingaspurgear C2, attached to the drawing-block C3, which rotates upon a studC4, heldin an arm C5, projecting from the framework of the machine.

Supported by the framework of the machine and between the conicaldrawingdrums I B2 and B3 is a die-box or trough D, with its bottom Dinclined to correspond with the taper of the conical drawing-drums B2and B3. The die-box D is provided with a central partition D2, which,with the side walls D3 and D4, is provided with vertical slots D5,placed in alignment with the V-shaped grooves B4 on the conicaldrawing-drums B2 and B2, allow- 4ing the wire in the operation ofdrawing to pass from one ofthe drawing-drums to the other through theslots D5, and also through reducing-dies E, which rest against thecentral partition D2 and the side wall D3 of the trough D, by which thedies E are held from longitudinalmovement as the wire is drawn throughthere. The die-box D is also provided with a series of transversepartitions F, extending across each of the two divisions of the die-boxbetween each set of dies, forming separate compartments F, eachcontaining a reducing-die E.

Attached to the end of the wire-drawing drum B2 is a plate G, providedat its periphery withV a gib G', inclosing the edge of a vflange G2 upona drawing-block G3. (Shown in central sectional view in Fig. 4 and inend view in Fig. 5.) The drawing-block G3 is provided with a concentricsleeve G4, loosely litting the end of the shaft B and provided with aninternal screw-thread G5 to receive a screw G5, having a centralscrew-threaded hole, in which is carried a screw G7provided with atapering point G5, which enters a countersunk depression G9 in the endof the shaft B. The plate G is made in halves, s o as to be applied tothe flange G2, and is attached to and rotated with the conicaldrawing-drum B2, and the drawing-block G3 is capable of turning withinthe annular gib G', thereby allowing the drawing-block to remain at restduring the rotation of the drum B2 and plate G. The screw G7 is providedwith a hand-wheel G10, by which the screw is turned and pressed againstthe end of the shaft B2 to draw the block G3 o the end of the shaft Band crowd the inclined surface G14 against the gibG, in

`order to produce a frictional resistance sufficient to cause thedrawing-block G3 tobe rotated with the plate G.`

The end of the drawing-block G3 is provided IDO with a recess G42 toreceive a wire-gripping y device carried by the drawing-block and pivoted thereto by means of a screw G13.

The gripping device consists of a jaw H, formed of a bar pivoted uponthe screw G13 and provided with teeth H', and a jaw H2, provided' withlugsl'l3, which are pivoted to the jaw II by a pin H4. The jaw H2 isprovided with a tail-piece H3, extending rearwardly, to which pressureis applied to rock the jaw H2 on its pin Il1 and separate the jaws toinsert the wire, and between the rear wall H3 of the pivoted jaw H2 andthe shoulder H7 on the jaw H is placed a spring H3, with its tensionexerted upon the pivoted jaw to rock it upon thev pin H1 and carry theteeth H9 forward and downward toward the teeth H', so that the end of awire inserted between the teeth II and llil will be securely held, asthe tensile strain exerted upon the wire will tend to carry the teeth H9of the pivotedA jaw forward, rocking the jaw upon the pin H1, and theforward motion ot' the teeth Il", caused by the angular motion of thejawon the piu H1, will cause theteeth H1 to approach the teeth H andengage the wire held between them, the initial bite of the teeth uponthe wire being due to the pressure of the spring H3.

The drawing-block G3 is provided with a curved surface I, leading fromthe recess G12 to the circular face or periphery I ot' thedrawing-block, the curved surface I being tangential to the periphery land also to a straight line passing through the center ofl the screwG13, which represents the line of draft of the wire as held between thejaws H H2. A fiange J projects from the front side of the die-box,forming a platform or shelf, which supports a swinging bar J, pivoted tothe flange J at J2 and having at its free end two upright prongs J3 J3,.against which one of the dies E is placed, for the purpose ot` holdingthe die from longitudinal movement as the wire is drawn through it.

In the operation of the machine the wire is successively reduced indiameter by the several reducing-dies in their numerical order, thefirst reduction being made by die l, the second by die 2, and so on, andin order to introduce the wire to the machine the diameter of the wiremust be reduced to correspond to each of the dies-that is, it must bereduced in diameter sufficiently to pass through die 1, around theconical drawing-drun1s B2 and B3, and further reduced to pass throughdie 2, and again around the conical drawingdrums B2 and B3, and stillfurther :reduced to pass through die 3, and so on through the successivedies and around the drawing-drums B2 B3 to the drawing-block C3, uponwhich it is wound in the usual manner, the periphery of thedrawing-block being tangential to the line of wire as it is deliveredfrom the last V- shaped groove in the conical drawing-drum B3. Theseveral dies from l to S, inclusive, are held within the compartments Fof the die`box and against'the side wall D3and central partition D2, andthe last die 9 is held by a supporting-bracket placed outside the diehoxfor lack of room within the die-box.

The successive reductions of the wire necessary to introduce it to thereducing-dies are accomplished by pointing the end ofthe wire andpassing it through the larger ot the dies or die l and seizing thepointed end by the gripping-jaws H H2, with the die l placed upon theswinging bar J and against the up right prongs J3 J3. The block G3 isthen ro tated by turning the hand-wheel G10 and operatively connectingthe block with the plate G, carried by the rotating drawing-drum B2. Asthe block G3 rotates, the wire is held bythe gripping-jaws H H2, isconducted over the curved surface I upon the circular face I ot theblockG3,andasnicientquantityis wound thereon to lill the drawing-drums B2 B3,the swinging-bar J, carrying the reducing-die, allowing the wire to betraversed upon the block G3. The wire is then removed from the block G3,the die l placed in position in the die-box, and the end ot the wireagain pointed and passed through die 2, which is held upon the swinging`har J, and the wire is seized by the gripping-jaws H H2 and theoperation again repeated, and so on through each of the reducing-diessuccessively until the wire is car ried through each of the dies andaround the drawing-drums B2 B3 with the dies held in position in thecompartments F2 of the dieboX D, as represented in Fig. 2 of thedrawlngs.

Beneath the drawing-drums B2 B3, I place a reeeiving-pan K, providedwith a strainer K, communicating with a trough K2, containing alubricating-liquid, which is forced from the trough K2 upward through apipe K3 by the revolution ot' a centrifugal pump K1 and delivered to thedie-box D, filling the upper of the compartments F and flowing over thehighest of the transverse partitions F to the next lower compartment,thence over the next transverse partition to the next lowerco1npartment, and so on through the several compartments of the die-box,the nal overflow falling into the receiving-pan K and through thestrainer K to the trough K2.

The sides of the die-box D are provided with aprons L L, which extendpartially over the drawing-drains B2 B3, so that the lubricat ing liquidescaping from the die-box through the slots D3 isA delivered upon thedrawingdrums B2 B3, lubricating the surfaces of the drums and drippingfrom them into the pan K. The centrifugal pump K4 is driven by avertical shaft K5and pulley K3 by a belt connection from an overhead orcounter shaft, the belt connection being carried around the idle-pulleysK7 K1.

The vertical pipe K3 is provided with a valve at K3, operated by avalve-stem K, extending to the front of the machine, by which the flowof liquid through the pipe K3 is regulated. Whenever a change in thesize ot' the wire to be drawn is necessary to vary the diameter of thedrawing-block C3, the axis of IOO the block is changed so as to bringits actuating-gear in mesh with the gear C and also bring its peripherytangential to the line of wire as delivered to the drawing-drumBa, and`this is accomplished by providing the arm C5, upon which thedrawing-block is supported, with a series of holes M, adapted tolreceive the stud C5.

lThe arrangement of the die-box D, placed at an inclination and providedwith a series of transverse partitions, causes the lubricating liquidpumped into'the highest ofthe compartments to flow over the tops of thepartitions F, which serve as dams, producing an agitation of the liquidthroughout each of the compartments, at the same time retaining a bodyof liquid in each compartment sufficient to completely immerse the wire.

Th e gripping-jaws H and H2can be raised out of the recess G12 byrotating them upon their pivotal screw G13, in order to allow the end ofthe wire to be insertedgbut when the block G3 is rotated in theoperation of winding wire thereon the gripping-jaws occupy the positionrepresented in Fig. 5, lying wholly within the arc of the circledescribing the periphery of the block G2, so that as the wire istraversed across the face of the block and wound against the flange G2the coils of wire already wound upon the block will be pushed toward theend and over the recess G12, thereby utilizing the entire face I for thewound wire.

VhatI claim as my invention, and desire to secure by Letters Patent, is-

i. In a wire drawing machine, the combination with a pair of wiredrawing drums, of an inclined die box placed between said drums, aseries of dies held in said die box at different vertical planes, andmeans for feeding lubricating liquid to said die box at its highestside, whereby said lubricating liquid is caused to iiow over said diesin succession, substantially as described.

2. In a wire drawing machine, the combi-c nation with a pair of wiredrawing drums, of a die box placed between said drums and in an inclinedposition, means for feeding lubricating liquid to its highest side,whereby said liquid is caused to flow over said inclined die box, and aseries of partitions placed transversely to the flow of said liquid overthe surface of the die box, whereby said stream is impeded, and a seriesof dies held in the spaces between said partitions, substantially asdescribed. l

3. In a wire drawing machine, the combination of wire drawing drums, aninclined die box arranged to receive a flowing stream of lubricatingliquid, transverse partitions of varying vertical height forming aseries of dams over which said stream tiows, and a series of dies heldin said box, substantially as described. l

4. In a wire drawing machine, the combination with a pair of wiredrawing drums, of a die box held between said drums, and having sidewalls, as D3 and D4, parallel with the axes of said drums, means forfeeding lubricating liquid to said die box and aprons, as at L,extending from the sides of said die box over said drums, whereby theoverliow at the sides of said die box is conducted to and delivered uponsaid drums, substantially as described.

5. In a wire drawing machine, the combination of a pair of wire drawingdrums, a wire block carried upon the end of one of said drums, wiregripping mechanism carried by said wire block and a pivoted die holdinglever, capable of an angular motion by which the wire is allowed totraverse upon said block, substantially as described.

6. In a wire drawing machine, the combination of shaft B, a plate Gconcentric with said shaft and `having a gib G', a wire block G2, heldby said plate, and having a sleeve G4 inclosing said shaft and a screwG7 carried by said block and Lacting against the end of said shaft tooperatively connect the block and plate, substantially as described.

7. The combination with adrawing block of a bar H pivoted at one end tosaid block and having teeth H at its opposite end arranged in a planecorresponding with the line of draft, a jaw H5, provided with teeth H9arranged in a plane corresponding with the line of draft, lugs H3projecting from the jaw H2, at right angles to the plane of the teethand pivoted at their ends to said bar H, said bar H having a shoulderH7, and said jaw H2 having an opposing wall H6, a spring insertedbetween said shoulder and said wall to close the teeth of the jaw uponthe teeth of said bar and a projecting tail piece H5, by which the jawis opened, substantially as described.

8. In a wire drawing machinethe combination with a pair of wire drawingdrums, of a die box placed between said drums having aprons L, II,extending from the sides of said box over said drums, a receiving pan Kbeneath said drums, a strainer K', a trough K2, pipe K3, pump K4, valveK8, in the pipe K3 and a valve stem K2 extending from the valve K8 tothe front of the machine, substantially as described.

9. In a wire drawing machine, the combination of a pair of conical wiredrums B2 and B3, carried on the projecting ends of shafts B and B2having parallel axes, avdie box placed above the plane of said shaftsand at an inclination corresponding to the inclination of the uppersides of said conical drums, said box having side walls D3 and D4,provided with openings to receive the wire, transverse partitions atright angles to said side walls, and dies held between said transversepartitions, substantially as described.

Dated this 6th day of July, 1893.

VICTOR E. EDWARDS.

Witnesses:

RUrUs B. FowLER, EMMA KESTER.

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